配电网单相接地故障定位直流注入法的研究
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摘要
在配电网单相接地故障定位中,由于水泥杆接地故障的存在以及导线分布电容的影响,使得C行行波法和交流注入法不能有效定位,直流定位方法解决了上述两种方法的盲区问题,其优点是不受导线分布电容的影响,缺点是信号不容易检测。本文对此方法做了原理性介绍,然后着重对系统装置的软件和硬件设计作了全面的介绍。故障定位装置包括直流信号源和直流信号探测器,信号源通过PWM实现调压,从而达到输出电流恒定的目的;信号探测器采用霍尔磁势平衡传感器检测注入信号,利用无线传输技术实现测量与显示的分离。
In the distribution network fault location, because of the cement pole earth fault and the existence of the wire distribution capacitance makes the C type traveling wave method and the AC signal injection method can not work effectively. DC signal injection method solves the problem of the two methods' blind area. The advantage of it is free from the wire distributing capacitance influence and the weakness is the signal would be difficult to detect. The paper introduces the principle of the method. Then the paper introduces the software and the hardware about the systemic equipment generally. The equipment of DC injection fault location includes DC signal generator source and a corresponding signal detector, DC signal generator source adjusts the voltage through PWM so as to achieve the purpose of output a constant current. The signal detector using magnetometive balance Hall sensor to detect the injected signal, and adopts wireless transmission technology to realize the separation of measurement and display.
In the distribution network fault location, because of the cement pole earth fault and the existence of the wire distribution capacitance makes the C type traveling wave method and the AC signal injection method can not work effectively. DC signal injection method solves the problem of the two methods' blind area. The advantage of it is free from the wire distributing capacitance influence and the weakness is the signal would be difficult to detect. The paper introduces the principle of the method. Then the paper introduces the software and the hardware about the systemic equipment generally. The equipment of DC injection fault location includes DC signal generator source and a corresponding signal detector, DC signal generator source adjusts the voltage through PWM so as to achieve the purpose of output a constant current. The signal detector using magnetometive balance Hall sensor to detect the injected signal, and adopts wireless transmission technology to realize the separation of measurement and display.
引文
[1]成艳.35KV配电网单相接地故障定位的系统研究与实现:[硕士学位论文].北京:华北电力大学,2008
[2]成艳,宋丽君,王文,等.35KV故障定位的系统研究与实现.继电器,2007,35(8):16～20
[3]张萌萌.配电网单相接地故障定位方法的研究:[硕士学位论文].山东:中国石油大学,2007
[4]齐郑.小电流接地系统单相接地故障选线及定位技术的研究:[博士学位论文].北京:华北电力大学,2005
[5]陈晓毅,徐为纲.配电网管理地理信息系统的开发.中国电力,2001,(5):21～25
[6]孙雅明,严斌.基于非故障相暂态电流的单相接地故障定位新方法.电网技术,2004,28(19):55～59
[7]王铭,徐玉琴.非故障相暂态电流特性分析及其在故障定位中的应用.继电器,2005,33(24):20～23
[8]伊贵业,杨学昌,吴振升.配电网接地故障定位的传递函数法.清华大学学报(自然科学版),2004,28(3):64～66
[9]徐容明.一种基于故障指示器的配电线路故障自动定位系统.电力设备,2005,6(10):66～67
[10]张利,杨鹏,司冬梅,等.基于零序功率方向的中性点不接地系统在线故障定位.电力系统自动化,2008,32(17):79～82
[11]刘强强.配电网在线故障定位零序相量法的研究与实现:[硕士学位论文].北京:华北电力大学,2009
[12] M EI-Hami, L L Lai, D J Daruwala, A T Johns. A new traveling-wave based scheme for fault detection on overhead power distribution feeders. IEEE Transactions on Power Delivery, October 1992,Vol.7,No.4
[13] Nouri H, Wang Chun, Davies T. Anaccurate fault location technique for distribution lines with tapped loads using wavelet transform. Power Tech Proceedings,2001 IEEE Porto,2001,3,4
[14] Magnago F H,Abur A.A New Fault Location Technique for Radial Distribution Systems Based on High Frequency Signals. Power Engineering Society Summer Meeting,1999,1,426～431
[15] H.Hizam,P.A.Crossley,P.F.Gale,et al.Fault section identification and location on a distribution feeder using travelling waves.Power Engineering Society Summer Meeting,2002,3,1107～1112
[16] David W.P.Thomas,Ricardo J.O.Carvalho,Elisete T.Pereira.Fault location indistribution systems based on traveling waves.Power Tech Conference Proceedings,2003,2,23～26
[17] D W P Thomas,C Christopoulos,et al.Single and double ended travelling-wave fault location on a MV system.Development in Power System Protection ,2004.Eighth IEE International Conference,2004,1:200～203
[18]张慧芬,潘贞存,桑在中.基于注入法的小电流接地系统故障定位新方法.电力系统自动化,2004,28(3):64～66
[19]杨鹏,杨以涵,杨景,等.基于直流法的配电网单相接地故障离线定位研究.电力系统保护与控制,2008,36(22):57～60,71
[20]戚宇林.中压配电网单相接地故障定位的研究与实现:[博士学位论文].北京:华北电力大学,2008
[21] Qi Yulin, Zhu Yanwei.Application of signal generator based on reducing work frequency S’s signal injection method in distribution network.Proceedings of the second international conference on intelligent information management system and technology,2007,1:323～326
[22]杨鹏,杨以涵,戚宇林,等.配电网单相接地故障定位技术实验研究.电力系统自动化,2008,32(9):104～107
[23]叶斌.电力电子应用技术.北京:中国电力出版社,2006,20～40
[24]鲍可进.C805F单片机原理及应用.北京:中国电力出版社,2006,5～6
[25]童长飞.C8051F系列单片机开发与C语言编程.北京:航空航天大学出版社,2005,1～30
[26]金海明,郑安平.电力电子技术.北京:北京邮电大学出版社,2001,53～54
[27]王兆安,黄俊.电力电子技术.北京:机械工业出版社,2004:80～150
[28]朱艳伟.配电网单相接地故障定位S信号法的研究与改进:[硕士学位论文].保定:华北电力大学,2007
[29]金祥龙,李斌.便携式毫安级直流电流钳型表的研制.电测与仪表,1993.12:10～11,18
[30]卢文科.0-2A直流小电流数字钳型表的研究.仪器仪表学报,1998.4,19(2):196～199
[31]冯明,夏冠群,胡少坚.GaAs霍尔元件不等位电势的调制消除.功能材料与器件学报,2004.12,10(4):455～458
[32]谢筑森,曲东升.采用调制方法消除霍尔元件不等位电势.电测与仪表,1999,36(402):16-18,21
[33]陈兴哲.霍尔元件与不等位电势误差补偿方法探讨.仪器仪表与分析监测,1992,2:11～13,24
[34]张建军,卢文科.直流数字钳形电流表的研究.工业仪表与自动化设备,2000,2:56～58
[35] Lu Wenke, Hu Xinmei, et a1.Temperature compensation of Hall element. Measurement,2007,40:283～287
[36] Liu Yang,Zhang Xiangmei,Li Chengchun,et a1.Study of the Multi-parameter Measuring System Based on Wireless Sensor Network.2009 International Conference on Measuring Technology and Mechatronics Automation,2009.4,1:148~151
[37] Mei Jianhong,Sun Rongxia,Dong Limei,et a1.Design of USB multi-channel temperature and humidity acquisition system based on wireless communication. 2009 9th International Conference on Electronic Measurement & Instruments,2009.8,3:100~103
[38] Wang Bo.The Wireless Data Transmission System Design Based on nRF2401. 2009 International Forum on Information Technology and Application. 2009.5,1:218~221
[2]成艳,宋丽君,王文,等.35KV故障定位的系统研究与实现.继电器,2007,35(8):16～20
[3]张萌萌.配电网单相接地故障定位方法的研究:[硕士学位论文].山东:中国石油大学,2007
[4]齐郑.小电流接地系统单相接地故障选线及定位技术的研究:[博士学位论文].北京:华北电力大学,2005
[5]陈晓毅,徐为纲.配电网管理地理信息系统的开发.中国电力,2001,(5):21～25
[6]孙雅明,严斌.基于非故障相暂态电流的单相接地故障定位新方法.电网技术,2004,28(19):55～59
[7]王铭,徐玉琴.非故障相暂态电流特性分析及其在故障定位中的应用.继电器,2005,33(24):20～23
[8]伊贵业,杨学昌,吴振升.配电网接地故障定位的传递函数法.清华大学学报(自然科学版),2004,28(3):64～66
[9]徐容明.一种基于故障指示器的配电线路故障自动定位系统.电力设备,2005,6(10):66～67
[10]张利,杨鹏,司冬梅,等.基于零序功率方向的中性点不接地系统在线故障定位.电力系统自动化,2008,32(17):79～82
[11]刘强强.配电网在线故障定位零序相量法的研究与实现:[硕士学位论文].北京:华北电力大学,2009
[12] M EI-Hami, L L Lai, D J Daruwala, A T Johns. A new traveling-wave based scheme for fault detection on overhead power distribution feeders. IEEE Transactions on Power Delivery, October 1992,Vol.7,No.4
[13] Nouri H, Wang Chun, Davies T. Anaccurate fault location technique for distribution lines with tapped loads using wavelet transform. Power Tech Proceedings,2001 IEEE Porto,2001,3,4
[14] Magnago F H,Abur A.A New Fault Location Technique for Radial Distribution Systems Based on High Frequency Signals. Power Engineering Society Summer Meeting,1999,1,426～431
[15] H.Hizam,P.A.Crossley,P.F.Gale,et al.Fault section identification and location on a distribution feeder using travelling waves.Power Engineering Society Summer Meeting,2002,3,1107～1112
[16] David W.P.Thomas,Ricardo J.O.Carvalho,Elisete T.Pereira.Fault location indistribution systems based on traveling waves.Power Tech Conference Proceedings,2003,2,23～26
[17] D W P Thomas,C Christopoulos,et al.Single and double ended travelling-wave fault location on a MV system.Development in Power System Protection ,2004.Eighth IEE International Conference,2004,1:200～203
[18]张慧芬,潘贞存,桑在中.基于注入法的小电流接地系统故障定位新方法.电力系统自动化,2004,28(3):64～66
[19]杨鹏,杨以涵,杨景,等.基于直流法的配电网单相接地故障离线定位研究.电力系统保护与控制,2008,36(22):57～60,71
[20]戚宇林.中压配电网单相接地故障定位的研究与实现:[博士学位论文].北京:华北电力大学,2008
[21] Qi Yulin, Zhu Yanwei.Application of signal generator based on reducing work frequency S’s signal injection method in distribution network.Proceedings of the second international conference on intelligent information management system and technology,2007,1:323～326
[22]杨鹏,杨以涵,戚宇林,等.配电网单相接地故障定位技术实验研究.电力系统自动化,2008,32(9):104～107
[23]叶斌.电力电子应用技术.北京:中国电力出版社,2006,20～40
[24]鲍可进.C805F单片机原理及应用.北京:中国电力出版社,2006,5～6
[25]童长飞.C8051F系列单片机开发与C语言编程.北京:航空航天大学出版社,2005,1～30
[26]金海明,郑安平.电力电子技术.北京:北京邮电大学出版社,2001,53～54
[27]王兆安,黄俊.电力电子技术.北京:机械工业出版社,2004:80～150
[28]朱艳伟.配电网单相接地故障定位S信号法的研究与改进:[硕士学位论文].保定:华北电力大学,2007
[29]金祥龙,李斌.便携式毫安级直流电流钳型表的研制.电测与仪表,1993.12:10～11,18
[30]卢文科.0-2A直流小电流数字钳型表的研究.仪器仪表学报,1998.4,19(2):196～199
[31]冯明,夏冠群,胡少坚.GaAs霍尔元件不等位电势的调制消除.功能材料与器件学报,2004.12,10(4):455～458
[32]谢筑森,曲东升.采用调制方法消除霍尔元件不等位电势.电测与仪表,1999,36(402):16-18,21
[33]陈兴哲.霍尔元件与不等位电势误差补偿方法探讨.仪器仪表与分析监测,1992,2:11～13,24
[34]张建军,卢文科.直流数字钳形电流表的研究.工业仪表与自动化设备,2000,2:56～58
[35] Lu Wenke, Hu Xinmei, et a1.Temperature compensation of Hall element. Measurement,2007,40:283～287
[36] Liu Yang,Zhang Xiangmei,Li Chengchun,et a1.Study of the Multi-parameter Measuring System Based on Wireless Sensor Network.2009 International Conference on Measuring Technology and Mechatronics Automation,2009.4,1:148~151
[37] Mei Jianhong,Sun Rongxia,Dong Limei,et a1.Design of USB multi-channel temperature and humidity acquisition system based on wireless communication. 2009 9th International Conference on Electronic Measurement & Instruments,2009.8,3:100~103
[38] Wang Bo.The Wireless Data Transmission System Design Based on nRF2401. 2009 International Forum on Information Technology and Application. 2009.5,1:218~221
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